ZyXEL Communications G-4100 User Manual

ZyAIR G-4100 

11 

 

 

 

Select Static IP Setting If the ISP assigned a 
fixed IP address. 

Enter the WAN IP address, subnet mask, 
gateway IP address and DNS server address(s) 
that your ISP assigned you. 

Click Next to continue to Figure 9. 

 

Select PPPoE If the ISP uses PPPoE for your 
account (PPPoE simulates a dial-up connection). 

Enter the user name and password exactly as 
your ISP assigned them. 

A maximum transmission unit (MTU) is the 
largest size packet or frame, specified in octets 
(eight-bit bytes) that can be sent in a packet- or 
frame-based network. The Transmission Control 
Protocol (TCP) uses the MTU to determine the 
maximum size of each packet in a transmission. 
Too large an MTU size may mean 
retransmissions if the packet encounters a router 
that can't handle that large a packet. Too small 
an MTU size means relatively more header 
overhead and more acknowledgements that 
have to be sent and handled.  

The maximum segment size (MSS) is the largest 
amount of data, specified in bytes, that a 
computer or communications device can handle 
in a single, unfragmented piece. 

For optimum communications, the number of bytes in the data segment and the header must add up to less than 
the number of bytes in the maximum transmission unit (MTU). 

Enter the name of your PPPoE server, in the Service Name field if provided; otherwise leave it blank. 

Select Connect on Demand when you don't want an “always-on” connection and specify an inactivity time limit 
(in minutes) in the Max Idle Time field.